INCI Name：Acetyl Tetrapeptide-40 CAS：1472633-28-5 Sequence：Ac-Ala-Thr-Asn-Thr Molecular Weight：447.44 Appearance：White to off-white powder Purity (HPLC)：≥98% Water (KF)：≤8.0% Residual TFA：≤0.5% Solubility：Freely soluble in water